Shape ABCD is a parallelogram. Y is the mid-point of AB and Z is on BC such that BZ=1/2ZC. Given that AB=a and BC=b, describe, in terms of a and b: a) AC b)CY c)YZ
a) AC = a + b
b) CY = -b -1/2a
c) YZ = 1/2a + 1/3b
MC
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